Apparatus for removing and applying various devices.



No. 653,775. Patented IuIy I7, I900.

E. H. MARSHALL. APPARATUS FOR REMOVING AND APPLYING VARIOUS DEVICES.

(Application filed July 20, 1899.)

(No Model.)

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Unitas STATES PATENT Qrrrcn.

ELLIS n. MARSHALL, or FORT MADISON, IOWA.

APPARATUS FOR REMOVING AND APPLYING VARIOUS DEVICES.

SPECIFICATION formingpart of Letters Patent No. 653,775, dated July 17,1900.

Application filed July 20, 1899.

T0 aZZ whom it may concern;

Be it known that I, ELLIS I-I. MARSHALL, a citizen of the United States,residing at Fort Madison, in the county of Lee and State of Iowa, haveinvented a new and useful Implement for Removing and Applying VariousDevices, of which the following is a specification.

This invention relates to an implement for removing or applying parts orattaehments such as nuts, caps, pins, rods, and like devices-andcontemplates means for setting up a firm grip on such devices which isunder manual control and effective in the operation sought.

The invention consists in the construction and arrangement of theseveral parts, which will be more fully hereinafter described andclaimed.

In the accompanying drawings, Figure l is a transverse vertical sectionof a puller embodying the invention. Fig. 2 is a perspective view of thesame looking underneath the several parts. Fig. 3 is a detail view of acompound volute spring used in connection with the device.

Similar numerals of reference are employed to indicate correspondingparts in the several views.

The numeral 1 designates a holder which is of tubular form and has itslower portion provided with opposite clamping-jaws 2 and 3, formed bylongitudinally slitting the holder, as at 4, for a portion of its lengthfrom the said lower end upwardly, the upper terminals of the slits beingenlarged, as at 5, to give freedom of movement to the jaws, particularlythe one jaw 3. The upper end of the holder 1 is connected to or formedintegral with a stem 6, having a screw-threaded terminal 7, to which isremovably fitted a screwthreaded shank 8 of a button or presser-head 0.The outer portion lO-of the lower terminal of the jaw 2 is flared, andslidingly mounted over the holder as an entirety is a sleeve 11, havinga cross-head 12 attached to the upper end thereof and provided with anupper concaved or hollow side 13 and a lower transversely'straight face111:. The face 14 is bisected by the sleeve 11 to thus form oppositegripping-faces, and the opening of the Serial No. 7%,5 26. (N0 model.)

said sleeve is continuous with an opening 14 through the saidcross-head. Movably surrounding the stem 6 and the shank 8 of the buttonor presser-head 9 is a compound volute spring 15, constructed of flatmetal and having the converging coils extending in opposite directionsand respectively bearing upon the eoncaved or hollow side of the head 12and the adjacent side of the said button or presser.

The flared end 10 of the jaw 3 has its outer surface gradually curved,and the sleeve 11 strikes the same and compresses said jaw toward thejaw 2. When the sleeve 11 is drawn upwardly on the holder 1, the tensionon the jaw 3 is removed and said jaw springs outward and theentrance-mouth to the holder is enlarged. In this condition the holdercan be quickly applied to the part to be pulled, and after properconnection the sleeve is re leased and exerts a pressure on the jaw andfirmly holds both jaws against the said engaged part. This sets up afirm gripping action, which is strong enough to overcome ordinaryresistance offered by the devices intended to be pulled by the improvedpuller, and bya subsequent npdrawing on the sleeve, the jaws 2 and 3 arefree to release the plunger-rod or rod-cap.

In operating the improved device fingers of the hand are arranged tostraddle the sleeve ll and bear against the gripping-faces of the side1; of the cross-head 12, and the thumb is placed against the uppersurface of the button or presser-head 9. Byfirmly forcing the thumbagainst the upper surface of the head to serve as a resistance againstthe updrawing pull on the cross-head 12 the sleeve 11 is moved upwardover the holder and the jaws 2 and 3 are cleared for action.

As above indicated, the improved device is intended for use in removingor applying nuts, caps, pins, rods, and the like from and to variousmechanism and is of such structure as to be capable of a general use andadapted for purposes to which it may be ap-' plicable, and itis intendedthat the springjaws have a stiff enough action to prevent slipping fromthe part to which the improved device is applied.

By using the compound volute spring a strong tension is exerted on thesleeve, which is exceptionally beneficial in maintaining the holdingactionof the jaw, Furthermore, this spring is always clear of the spring6 and wearing friction is prevented. By making one side 13 of the head12 concaved or hollow the operation of the spring is facilitated andless obstruction to the movement of the convolntions in theircompression results.

The device is light in its construction and can be easily transportedfrom one place to another and carried in the pocket. In view of thesmall number of parts their assemblage can be quickly accomplished, andin arranging them in operative relation the holder 1 is moved endwiseinto the sleeve 11 and the stem 6 projected through the head 12. Thespring 15 is then slipped over the projecting stem, and the shank 8 ofthe button or presser-head 9 is moved into the open end of the springand connected with the screw-threaded terminal of said shank.

The improved device will be found exceptionally convenient andpracticable, and changes in the proportions, size, and minor details ofconstruction may be resorted to without in the least departing from thenature or spirit of the invention or sacrificing any of the advantagesthereof.

Having thus described the invention, what is claimed as new is- A deviceof the character set forth, comprising a tubular holder slittedlongitudinally for a portion of its length to provide jaws, one of saidjaws being flared, the said the extremity opposite the jaws, a sleeveslidingly mounted on the holder and provided with a cross-head at theextremity thereof farthest from the jaws of the latter, a presserheadremovably attached to the stem of the holder, and a compound volutespring interposed between said cross-head and the presser-head andsurrounding the stern of the holder, whereby the sleeve will be restoredto normal position around the jaws of the latter when released.

In testimony that I claim the foregoing as my own I have hereto affixedmy-signa-ture in the presence of two Witnesses.

ELLIS H. MARSHALL. IVitnesses:

FRANK WEsTERHorr, J. M. NAUER.

.holder also having a screw-threaded stem at

